摘要
对广西微小按蚊卵巢营养细胞多线染色体进行观察并绘制了模式图。染色体由5臂组成,X染色体最短,具端着丝粒:Ⅱ号染色体最长,具亚中着丝粒;Ⅲ号染色体具中着丝粒。主要特征区有6区,7A、B,19C,20区,28A,30A、B,37D,38A、B,46D。观察700多张标本,染色体全部呈纯合状态。采用卵巢营养细胞制备的多线染色体带型清晰,伸展良好,染色体的两臂往往相连,易于确定臂间关系。
The ovarian nurse cell's polytene chromosomes of An. minimus exist as 5 arms, the telocentric X chromosome, the submetacentric chromosome 2 and the metacentric chromosome 3. The X chromosome is easily recognized by its length and shuttle-shaped zone 6, The most important characteristics is that each autosome arm has one to three big puffs. Among the 46 zones, 7A, B and 19C in 2R which is the longest arm in the complement, 28A and 20A, B in 2L, 30A, B and 37D in 3R and 46D and 38A, B in 3L are considered as characteristic zones. It is proposed that this map might be eonsn dered as the 'standard' map of the ovarian nurse cell's polytene chromosomes for An, minimus from Guangxi (Fig. 1).
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
1990年第2期117-120,共4页
Chinese Journal of Parasitology and Parasitic Diseases
关键词
微小按蚊
卵巢营养细胞
多线染色体
Anopheles minimus, ovarian nurse cell, polytene chromosome
